In humanness can be described as lacking qualities that are typically associated with being human, such as compassion, empathy, and kindness. The antonyms for this word would be humanity, benevolence, and kindness. Humanity refers to the quality of being humane and compassionate towards others, while benevolence is the act of showing kindness and goodwill towards others. Kindness, on the other hand, refers to the quality of being friendly, generous, and considerate towards others, and is the opposite of inhumanness, which connotes a cold and unfeeling attitude towards others. In summary, antonyms for inhumanness include humanity, benevolence, and kindness, all of which imply an empathetic and compassionate attitude towards others.